21023030241023 has 2 divisors, whose sum is σ = 21023030241024. Its totient is φ = 21023030241022.

The previous prime is 21023030241011. The next prime is 21023030241041. The reversal of 21023030241023 is 32014203032012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21023030241023 - 2⁴ = 21023030241007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21023030241023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21023030841023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511515120511 + 10511515120512.

It is an arithmetic number, because the mean of its divisors is an integer number (10511515120512).

Almost surely, 2^{21023030241023} is an apocalyptic number.

21023030241023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21023030241023 is an equidigital number, since it uses as much as digits as its factorization.

21023030241023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21023030241023 its reverse (32014203032012), we get a palindrome (53037233273035).

The spelling of 21023030241023 in words is "twenty-one trillion, twenty-three billion, thirty million, two hundred forty-one thousand, twenty-three".